aerial observer
空中观察员
热门单词
- abruption
- AC servo speed indicating generator set
- acaroid resin
- acceleration diagram
- acceptance theory of authority
- accessory adrenal
- accidental sampling
- acid drop
- acid embossing
- acid feeder
- acidophilia
- actinotropism
- actithiazic acid
- activated petroleum coke
- active speech
- actuating system
- aculeate
- additional steam
- adjacent channel
- adjustable condenser
- adjustment level
